Datasheet

SHUTDOWN CURRENT vs. V
SUP
MAX16955 toc24
V
SUP
(V)
SHUTDOWN CURRENT (µA)
333024 279 12 15 18 216
2
4
6
8
10
12
14
16
18
20
0
336
SHUTDOWN CURRENT vs. TEMPERATURE
MAX16955 toc25
TEMPERATURE (°C )
SHUTDOWN CURRENT (µA)
1109580655035205-10-25
10.35
10.40
10.45
10.50
10.55
10.60
10.30
-40
V
SUP
= 14V
V
EN
= 0V
125
SWITCHING FREQUENCY
vs. LOAD CURRENT
MAX16955 toc26
LOAD CURRENT (A)
FREQUENCY (kHz)
321
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1.0
-1.0
04
DIPS AND DROPS TEST,
PWM MODE, V
OUT
= 5V
MAX16955 toc27
V
LX
10V/div
V
PGOOD
5V/div
V
SUP
10V/div
V
OUT
2V/div
10ms
0V
14V
DIPS AND DROPS TEST,
SKIP MODE, V
OUT
= 5V
MAX16955 toc28
V
LX
10V/div
V
PGOOD
5V/div
V
SUP
10V/div
V
OUT
2V/div
10ms
0V
14V
DIPS AND DROPS TEST,
PWM MODE, V
OUT
= 3.3V
MAX16955 toc29
V
LX
10V/div
V
PGOOD
5V/div
V
SUP
10V/div
V
OUT
2V/div
10ms
DIPS AND DROPS TEST,
SKIP MODE, V
OUT
= 3.3V
MAX16955 toc30
V
LX
10V/div
V
PGOOD
5V/div
V
SUP
10V/div
V
OUT
2V/div
10ms
MAX16955
36V, 1MHz Step-Down Controller
with Low Operating Current
8
Maxim Integrated
Typical Operating Characteristics (continued)
(V
SUP
= V
EN
= 14V, C
IN
= 10μF, C
OUT
= 94μF, C
BIAS
= 2.2μF, C
BST
= 0.1μF, R
FOSC
= 66.5kΩ, f
OSC
= 468kHz, V
FB
= V
BIAS
,
V
OUT
= 5V, T
A
= +25°C, unless otherwise noted.)